Home / 20,653,882.36-28,502,889.49-11,361,691.15

Finding the Fourth Proportional to 20,653,882.36, 28,502,889.49 and 11,361,691.15

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Solution

The fourth proportional to 20,653,882.36, 28,502,889.49 and 11,361,691.15 is: 15,679,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653,882.36 : 28,502,889.49 = 11,361,691.15 : x
  2. Step 2: Convert to fraction form
    20,653,882.36/28,502,889.49 = 11,361,691.15/x
  3. Step 3: Cross multiply
    20,653,882.36x = 28,502,889.49 × 11,361,691.15
  4. Step 4: Simplify right side
    20,653,882.36x = 323,841,027,267,961
  5. Step 5: Solve for x
    x = 323,841,027,267,961/20,653,882.36
  6. Step 6: Final answer
    x = 15,679,426.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.